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  • TESTO ITC KORINNA 28mm Allargato

    MONOBLOCKDIRECTIONAL CONTROL VALVE

  • SDM102

    2 DAT011E

    Features

    Simple, compact and heavy duty designed 2 sections monoblock valve are used in Front Loader application with open centre andclosed centre hydraulic systems.H Parallel circuit.H Fitted with a main pressure relief valve and a load check valve on every working section.H Available with manual and remote with flexible cables spool control kits.H Diameter 16 mm -- 0.63 in interchangeable spools.H Available with service valve prearrangement.H Optional carry--over port.

    WARNING!All specifications of this catalogue refers to the standard product at thisdate. Walvoil, oriented to a continuous improvement, reserves the right to

    discontinue, modify or revise the specifications, without notice.

    WALVOIL IS NOT RESPONSIBLE FOR ANY DAMAGE CAUSED BY AN

    INCORRECT USE OF THE PRODUCT.3rd edition January 2000:This edition supercedes all prior documents.

    Additional informationThis catalogue shows the product in the most usual configurations.Please contact Customer Service Dpt. for more detailled information orspecial request.

  • SDM102

    3DAT011E

    Contents

    ContentsWorking conditions 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Dimensional data 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Hydraulic circuit 6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Performance data 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Ordering codes 8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Inlet relief options 10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Spool options 11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A side spool positioners 14. . . . . . . . . . . . . . . . . . . . . . . . . . .B side options 15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Port relief options 18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Outlet conversion port options 20. . . . . . . . . . . . . . . . . . . . . . .Installation and maintenance 21. . . . . . . . . . . . . . . . . . . . . . . .

  • SDM102

    4 DAT011E

    This catalogue shows technical specifications and diagrams measured with mineral oil of 46 mm2/s -- 46 cSt viscosity at 40C tempera-ture.

    Nominal flow rating 45 l/min

    Operating pressure (maximum) 250 bar 3600 psi

    Max. back pressure on outlet port T 25 bar 360 psi

    Internal leakage A(B)T Dp=100 bar -- 1450 psifluid and valve at 40C -- 104F

    3 cm3/min 0.18 in3/min

    Fluid Mineral oil

    Fluid temperature with NBR (BUNA--N) seals from --20 to 80C

    with FPM (VITON) seals from --20 to 100C

    Viscosity operating range from 15 to 75 mm2/s from 15 to 75 cSt

    min. 12 mm2/s 12 cSt

    max. 400 mm2/s 400 cSt

    Max level of contamination 19/16 -- ISO 4406

    Ambient temperature from --40 to 60C

    NOTE -- For different conditions please contact Customer Service.

    Working conditions

  • Dimensional data

    WALVOIL

    P9900001

    102020003

    MADE IN ITALYValve code

    Production batch :P99 = production year (1999)00001 = progressive number

    39 1.54

    75.5

    2.97

    39 1.54

    75.5

    2.97

    80.5

    3.17

    35.51.40

    361.42

    35.51.40

    1003.94

    11.50.45

    9.50.37

    P1 T1

    SDM102/2P

    P B1 A1 A2 B2 T

    311.22

    883.46

    190.75

    371.46

    381.50

    40.16

    1505.911596.26

    21 0.83

    70 2.76

    72 2.85

    120

    4.72

    235

    9.25

    50.20

    30 1.18

    391.54

    99.53.92

    26 1.02

    56.5

    2.22

    44.51.75

    391.54

    25.5

    1.00

    20.50.81

    6 0.24

    12 0.47 22 0.87

    M8

    100.39

    WALVOIL102020003P9900001

    MADE IN ITALY

    Carry--over

    SDM102

    5DAT011E

    Standard threads

    PORTS BSP(ISO228/1)

    SAE UN--UNF METRIC(ISO 262)

    Inlet P and carry--over C SAE 8 (3/4--16 UNF)A and B ports G 3/8 SAE 6 (9/16--18 UNF) M18x1.5Outlet T SAE 8 (3/4--16 UNF)

  • Hydraulic circuit

    A1 B1 A2 B2

    P

    P1

    T

    T1

    Ex.:SDM102/2--P(TG3--175)/513RSLP/18MCSLP/AET--PSC--

    Standard configuration

    1752500

    A1 B1 A2 B2PP1 T

    T1

    1752500

    Ex.:SDM102/2--P(TG3--175)/513RSLP/18MCSLP/AET--PSL--

    Side inlet and outlet ports configuration

    Pressure relief valve

    P T

    T1P1

    Tank linePressure line

    A port line

    B port line

    Spool

    A2

    Load check valveAllen wrench 6 -- 24 Nm / 17.7 lbft

    Allen wrench 624 Nm / 17.7 lbft

    Allen wrench 624 Nm / 17.7 lbft

    SDM102

    6 DAT011E

  • Work port to outlet

    Inlet to work port

    Open centre

    Performance data (pressure drop vs. flow)

    A1A2

    B1B2

    PT

    0

    5

    10

    15

    20

    0 10 20 30 40 50 60Flow

    Pre

    ssur

    edr

    op

    270

    180

    90

    (l/min)

    (bar)(psi)

    A2(B2)T

    A1(B1)T

    0

    5

    10

    15

    20

    0 10 20 30 40 50 60Flow

    Pre

    ssur

    edr

    op

    270

    180

    90

    (l/min)

    (bar)(psi)

    0

    5

    10

    15

    20

    0 10 20 30 40 50 60Flow

    Pre

    ssur

    edr

    op

    270

    180

    90

    (l/min)

    (bar)(psi)

    NOTE -- Measured with spools type 1 and 5 (standard configuration)

    PA2(B2)

    PA1(B1)

    A1A2

    B1B2

    PT

    From cap side inlet to outlet (PSC configuration).

    From cap side inlet to A port (spool in position 1) or B port (spool in position 2).

    From A port (spool in position 2) or B port (spool in position 1) to outlet

    A1A2

    B1B2

    PT

    SDM102

    7DAT011E

  • SDM102

    8 DAT011E

    5. B side options page 15

    1. Body kit *

    4. A side spool positioners page 14

    3. Spool options page 11

    2. Inlet relief options page 10

    Ordering codes

    Example:

    1.

    SDM102 / 2--P (TG3 -- 175) / 5 13R SLP . U175UT / 18MCSLP . UTUT / AET -- PSC -- *

    TYPE CODE DESCRIPTION2--P 5KC1853000 2 section, without valve prearrangement2--P 5KC1853001 2 section, with valve prearrangement on

    each section

    TYPE CODE DESCRIPTIONVMD080 direct pressure relief valve type T(TG2--80) X162121080 Range 63 to 125 bar / 900 to 1800 psi

    standard setting 80 bar / 1150 psi(TG3--175) X162121175 Range 100 to 200 bar / 1450 to 2900 psi

    standard setting 175 bar / 2500 psi(TG4--250) X162121250 Range 160 to 250 bar / 2300 to 3600 psi

    standard setting 250 bar / 3600 psiStandard setting is referred to 10 l/min flow.

    SV XTAP524340 Relief valve blanking plug

    TYPE CODE CIRCUIT DESCRIPTION1 3CU5210100 Double acting, 3 positions, with A and B

    closed in neutral position5 3CU5242100 Double acting, 4 positions, with A and B

    to tank in 4th position (float)8 3CU5262100 Double acting, 4 positions, with regenerative

    in 4th position

    2. 3. 4. 5.

    Include body, seals, rings and load check valve.

    6.

    1st section 2nd section

    TYPE CODE DESCRIPTION8MC 5V08205000 With spring return in neutral position13R 5V13306010 With detent in position 3, spring return in

    neutral position13F 5V13505100 With spring return in neutral position and

    reduced stroke

    4.

    8MC

    13R

    1.

    13F

    6.U C UT

    7. Black painted

    TYPE CODE DESCRIPTIONSLP 5COP107000 Without lever, with dust--proof plateLG 5LEV107805 Cast iron lever boxTQ 5TEL107100 Prearranged for cable remote controlLCB 5CLO202000 Mechanical joystick

    8.

    8.

    8.

    Pressure relief valve setting in bar

    NOTE (*) -- Items are referred to BSP thread.

    F

    J

    F

    J

    F

    J

  • SDM102

    9DAT011E

    8. Inlet and outlet plugs *

    7. Outlet conversion port options * page 20

    6. Port relief options page 18

    Ordering codes

    I Optional handlevers

    TYPE CODE DESCRIPTIONAET 3XTAP822150 Open centre (nr.1 SAE 8 plug required)AE XGIU524551 G 3/8 carry--over sleeveAEK 5GIU527580 Closed centre kit

    2.

    T

    SV

    3.

    5.

    SLP

    LG

    I

    TQ

    LCB

    7.

    AET

    AE

    AEK

    TYPE CODE DESCRIPTIONAnti--shock and anti--cavitation valvesU025 5KIT326025 Setting to 25 bar / 360 psiU040 5KIT326040 Setting to 40 bar / 580 psiU060 5KIT326060 Setting to 60 bar / 870 psiU070 5KIT326070 Setting to 70 bar / 1000 psiU080 5KIT326080 Setting to 80 bar / 1150 psiU090 5KIT326090 Setting to 90 bar / 1300 psiU100 5KIT326100 Setting to 100 bar / 1450 psiU125 5KIT326125 Setting to 125 bar / 1800 psiU140 5KIT326140 Setting to 140 bar / 2030 psiU160 5KIT326160 Setting to 160 bar / 2300 psiU175 5KIT326175 Setting to 175 bar / 2500 psiU190 5KIT326190 Setting to 190 bar / 2750 psiU210 5KIT326210 Setting to 210 bar / 3050 psiU230 5KIT326230 Setting to 230 bar / 3300 psiU250 5KIT326250 Setting to 250 bar / 3600 psiU260 5KIT326260 Setting to 260 bar / 3750 psiU280 5KIT326280 Setting to 280 bar / 4000 psiStandard setting is referred to 10 l/min flow.

    C 5KIT426270 Anti--cavitation valveUT XTAP221340 A and B port valve blanking plug

    TYPE CODE DESCRIPTIONAL01/M10x150 170012015 For LG lever box

    L = 150 mm / 5.91 inAL08/M12x200 170013120 For LCB joystick L = 200 mm / 7.87 in

    TYPE CODE DESCRIPTIONPSC 3XTAP722160 Cap side inlet and outlet (G 3/8 nr.2 plugs

    required)PSL 3XTAP722160 Side inlet and outlet (G 3/8 nr.2 plugs

    required)

    1

    5

    8

    I

    NOTEJ F -- Spools and positioners with the same symbol must be assembled together: for more informations see relevant pages.

    F

    J

  • SV: relief valve blanking plug

    Pressure relief valve

    Inlet relief options

    0

    100

    200

    300

    0 20 40 60

    VMD080 ( T G 3 -- 175)

    Pressure setting in bar (standard 175 bar -- 2540 psi).

    Adjustable spring type (2, 3, 4).Adjustment type (G, Z).

    Performance data

    Adjustemt type

    44 max.

    Wrench 24 -- 42 Nm / 31 lbft

    Allen wrench 5

    Wrench 19 -- 24 Nm / 17.7 lbft

    0

    100

    200

    300

    0 20 40 60

    4

    Allen wrench 642 Nm / 31 lbft

    1.80

    Flow

    Pre

    ssur

    e

    (l/min)

    (psi)(bar)

    0.16

    G: with screw Z: with tamper proof cap

    Spring nr. 3

    0

    100

    200

    300

    0 20 40 60Flow

    Pre

    ssur

    e

    (l/min)

    (psi)(bar)

    3000

    2000

    1000

    Spring nr. 2

    Flow

    Pre

    ssur

    e

    (l/min)

    (psi)(bar)

    Spring nr. 4

    0.26RESPONSE TIME

    10%

    175

    bar

    2500

    psi90%

    95%

    105%

    Pre

    ssur

    e

    Time ()

    (% DP)

    Response time

    4000

    3000

    2000

    1000

    4000

    3000

    2000

    1000

    4000

    Cap code: 3COP124180

    471.85

    SDM102

    10 DAT011E

  • FJ

    YP(on ports) = 63bar/900psiP(on ports) = 100bar/1450psiP(on ports) = 250bar/3600psi

    Qin = 45 l/min

    0

    10

    20

    30

    40

    50

    0.0 1.0 2.0 3.0 4.0 5.0

    Spool metering A(B)T

    Flow

    Stroke (mm)

    (l/min )

    (in)0.1 0.2

    5.50

    10

    20

    30

    40

    50

    0.0 1.0 2.0 3.0 4.0 5.0

    Spool metering PA(B)

    Flow

    Stroke (mm)

    (l/min )

    (in)0.1 0.2

    5.5

    Performance data

    F JY

    FJ Y

    Type 1

    Spools

    A

    "

    stroke =

    P A B T

    A BT TLC

    P B A T

    TP

    P--A--B--T closed, with flow through line open

    3010

    39

    169

    201A B

    P T

    A B

    P T

    201

    201A B

    P T

    0.39

    6.65

    -- 5.5 mm-- 0.22 in

    stroke =+ 5.5 mm+ 0.22 in

    1.18

    1.54

    A BT TLCTP

    A BT TLCTP

    Must be used only on 2nd section valve with positioner kit type 8MC .

    SDM102

    11DAT011E

  • FJ

    YP(on ports) = 63bar/900psiP(on ports) = 100bar/1450psiP(on ports) = 250bar/3600psi

    Qin = 45 l/min

    0

    10

    20

    30

    40

    50

    0.0 1.0 2.0 3.0 4.0 5.0

    Spool metering A(B)T

    Flow

    Stroke (mm)

    (l/min )

    (in)0.1 0.2

    5.50

    10

    20

    30

    40

    50

    0.0 1.0 2.0 3.0 4.0 5.0

    Spool metering PA(B)

    Flow

    Stroke (mm)

    (l/min )

    (in)0.1 0.2

    5.5

    Performance data

    FJ Y

    F JY

    Type 5

    Spools

    A

    "

    stroke =

    P A B T

    A BT TLC

    P B A T

    TP

    P--A--B--T closed, with flow through line open

    -- 5.5 mm-- 0.22 in

    stroke =+ 5.5 mm+ 0.22 in

    A BT TLCTP

    A BT TLCTP

    A BT TLCTP

    A(B) T (float)Float only with 13R positioner kit

    A stroke =-- 10 mm-- 0.39 inA

    201A B

    P T

    3

    201A B

    P T

    3

    201A B

    P T

    3

    201A B

    P T

    3

    Must be used only on 1st section valve with positioner kit type 8MC or 13R.

    NOTE -- AA Only for positioner kit type 13R.

    SDM102

    12 DAT011E

  • FJ

    YP(on ports) = 63bar/900psiP(on ports) = 100bar/1450psiP(on ports) = 250bar/3600psi

    Qin = 45 l/min

    0

    10

    20

    30

    40

    50

    0.0 1.0 2.0 3.0 4.0 5.0

    Spool metering PA(B)

    Flow

    Stroke (mm)

    (l/min )

    (in)0.1 0.2

    5.5

    Performance data

    F JY

    Type 8

    Spools

    0

    5

    10

    15

    20

    0 15 30 45

    Spool pressure drop AB(in position 3)

    Pre

    ssur

    edr

    op

    Flow (l/min)

    (bar)(psi)

    100

    200

    A

    "

    stroke =

    P AB T

    A BT TLC

    P BA T

    TP

    P--A--B--T closed, with flow through line open

    -- 4.5 mm-- 0.18 in

    stroke =+ 4.5 mm+ 0.18 in

    A BT TLCTP

    A BT TLCTP

    A BT TLCTP

    P A--B (regenerative)

    A stroke =-- 7.5 mm-- 0.30 inA

    201A B

    P T

    3

    201A B

    P T

    3

    201A B

    P T

    3

    201A B

    P T

    3

    Must be used only in 2nd section valve with positioner kit type 13F.

    SDM102

    13DAT011E

  • --400

    --200

    0

    200

    400

    --10.0 --8.0 --6.0 --4.0 --2.0 0.0 2.0 4.0(mm)

    Forc

    e

    Force--stroke diagram

    Stroke

    (N) (lbf)

    0 (in)0.20.1

    5.5

    80

    40

    --80

    --40

    0

    --0.2 --0.1--0.3

    From position 0 to 1

    From position 0 to 2

    From position 2 to 3

    Locking--unlocking areaLocking force: 320 N / 71.9 lbf 10%Unlocking force: 315 N / 70.8 lbf 10%

    --400

    --200

    0

    200

    400

    --7.5 --6.0 --4.5 --3.0 --1.5 0.0 1.5 3.0 4.5(mm)

    Forc

    e

    Force--stroke diagram

    Stroke

    (N)

    (in)

    80

    40(lbf)

    0--0.05--0.1--0.15--0.2--0.25 0.05 0.1 0.15

    --80

    --40

    0From position 0 to 1From position 0 to 2

    From position 2 to 3

    (mm)

    --200

    --100

    0

    100

    200

    --5.5 --4.5 --3.5 --2.5 --1.5 --0.5 0.5 1.5 2.5 3.5 4.5 5.5

    Forc

    e

    DCB

    Force--stroke diagram

    Stroke

    (N)0.1 0.2 (in)

    20

    10(lbf)

    --0.1--0.2 0

    --20

    --10

    0

    0

    DCB

    With detent on 4th position float circuit

    With spring return -- 4th position regenerative circuit

    With spring return

    A side spool positioners

    201

    8MC kit

    Supplied with standard spring type C (see force--stroke diagram); available with lighter spring type B (8MB code: 5V08505000) orheavier type D (8 code: 5V08105000).

    Allen wrench 46.6 Nm / 4.9 lbft

    Allen wrench 59.8 Nm / 7.2 lbft

    36.51.44

    833.27

    722.85

    201 3

    13F kit

    13R kit

    201 3

    Must be used with spool type 8 (page 13).

    Must be used with spool type 5 (page 12).

    Allen wrench 46.6 Nm / 4.9 lbft

    Allen wrench 59.8 Nm / 7.2 lbft

    Allen wrench 46.6 Nm / 4.9 lbft

    Wrench 69.8 Nm / 7.2 lbft

    SDM102

    14 DAT011E

  • LG cast iron lever box

    SLP dust proof plate

    B side options

    201With protection boot lever pivot box; it can be rotated 180 (LG180 configuration).Also available alluminium lever box: L configuration, code 5LEV107900

    NOTE -- The handlever must be ordered separately (see page 9).

    Mechanical control with dust proof plate201

    100.39

    301.18

    391.54

    150.

    59

    40.16

    1.5 x 45

    220.8721

    0.839H80.35 +.0009

    80.

    31

    160.

    63

    0.06

    30

    81.5

    3.21

    65.5

    2.58

    20 0.79

    44.5

    1.75

    301.18

    572.24

    C

    21 03

    A B

    Vertical handleverassembly

    Horizontal handleverassembly

    M 10

    Spool dimension

    136.

    55.

    37

    21 0.83

    37 1.46

    LG180 configuration

    Spool typeLever angle

    15 15 13

    1 5 8

    A

    15 15 13B

    / 27 21C

    Allen wrench 46.6 Nm / 4.9 lbft

    Allen wrench 46.6 Nm / 4.9 lbft

    SDM102

    15DAT011E

  • TQ cable remote control

    B side options

    201Waterproof cap prearranged for remote control with flexible cable.

    913.58

    CD flexible cable to be ordered separately

    Wrench 24

    NOTE -- For more information concerning remote cable control require appropriate documentation.

    Allen wrench 46.6 Nm / 4.9 lbft

    Wrench 10

    Example of cable control

    P1

    T1

    PB1A1A2B2T

    SCF030 remote control

    CD flexible cables

    SDM102 directional controlvalve with TQ cable control kit

    SDM102

    16 DAT011E

  • Mechanical joystick LCB

    B side options32 1.2644

    .51.

    7510

    .50.

    41

    110

    4.33

    381.50

    10.50.41

    M12

    201

    201

    Dimensions and movement scheme

    B1

    A2

    A1

    B2

    A2--B1 B1--B2

    A2--A1 B2--A1

    Execution LCB1pivot placed down on the left

    873.43

    1st section spool

    2nd section spool

    Execution LCB2pivot placed down on the right

    B2

    B1

    A2

    A1

    B1--B2 B2--A1

    B1--A2 A1--A2

    381.50

    10.50.41

    spool axis

    2st section axis1st section axis

    44.5

    1.755

    72.

    24

    381.50

    10.50.41

    A1

    A2

    B1

    B2

    A2--A1 A1--B2

    A2--B1 B1--B2

    Execution LCB3pivot placed above on the left

    381.50

    10.50.41

    A2

    B1

    B2

    A1

    A2--B1 A2--A1

    B1--B2 A1--B2

    Execution LCB4pivot placed above on the right

    873.43

    Pivot

    Wrench 1342 Nm / 31 lbft

    Allen wrench 39.8 Nm / 7.2 lbft

    Allen wrench 624 Nm / 17.7 lbft

    Wrench 13 Wrench 14

    NOTE -- The handlever must be ordered separately (see page 9).

    SDM102

    17DAT011E

  • Anti--shock and anti--cavitation valve

    Port relief options

    0

    10

    20

    30

    0 20 40 60Flow

    Pre

    ssur

    e 300

    200

    100

    (l/min)

    (bar)(psi)400

    0

    100

    200

    300

    400

    0 20 40 60Flow

    Pre

    ssur

    e

    (l/min)

    (bar) (psi)

    U175 UT

    A B

    T

    U 175

    A B

    T

    A B

    T

    UT U175 U175 U175

    6 0.24

    Wrench 524 Nm / 17.7 lbft

    Performance data

    Range setting A(B)T Pressure drop TA(B)

    Pressure setting in bar

    0.17RESPONSE TIME

    10%

    160

    bar

    2300

    psi90%

    95%

    105%

    Pre

    ssur

    e

    Time ()

    (% DP)

    Time response

    4500

    3000

    1500

    Available on prearranged body.

    SDM102

    18 DAT011E

  • Port relief valve blanking plug

    Anti--cavitation valve

    Port relief options

    Performance data

    C

    UT

    C UT

    A B

    T

    A B

    T

    A B

    T

    UT C C C

    3 0.12

    Wrench 524 Nm / 17.7 lbft

    A B

    T

    UT UT

    5.5

    0.22

    Wrench 624 Nm / 17.7 lbft

    0

    10

    20

    30

    0 20 40 60Flow

    Pre

    ssur

    e 300

    200

    100

    (l/min)

    (bar)(psi)400

    Pressure drop TA(B)

    Available on prearranged body.

    SDM102

    19DAT011E

  • KAE: with full system pressure carry--over

    AEK: with closed centre

    AE: with carry--over

    Outlet conversion port options

    A1 B1 A2 B2P

    P1

    T

    T1

    Ex.: SDM102/2--P(TG3--175)/513RSLP/18MCSLP/AE--PSC--

    1752500

    C

    A1 B1 A2 B2P

    P1

    T

    T1

    1752500

    A1 B1 A2 B2P

    P1

    T

    T1

    1752500

    C

    Ex.: SDM102/2--P(TG3--175)/513RSLP/18MCSLP/AEK--PSC--

    Ex.: SDM102/2--P(TG3--175)/513RSLP/18MCSLP/KAE--PSC--

    20.50.81

    26.51.04

    Wrench 2442 Nm / 31 lbft

    Allen wrench 624 Nm / 17.7 lbft

    T

    T1

    C

    T

    T1Wrench 2442 Nm / 31 lbft

    Allen wrench 624 Nm / 17.7 lbft

    Allen wrench 624 Nm / 17.7 lbft

    T

    T1

    C

    M12x1.5 DIN906 plugCode: 4TAP312010Allen wrench 6 -- 24 Nm / 17.7 lbft

    This option requires special valve body kit; contact Customer Service for more information.

    SAE8--G3/8 male--female jointCode: XGIU524552Wrench 24 -- 42 Nm / 31 lbft

    20.50.81

    SDM102

    20 DAT011E

  • Installation and maintenance

    The SDM102 valve is assembled and tested as per the technical specification of this catalogue.Before the final installation on your equipment, follow the below recommendations:-- the valve can be assembled in any position; in order to prevent body deformation and spool sticking mount the product on a flat

    surface;-- in order to prevent the possibility of water entering the spool control kit, do not use high pressure wash down directly on the valve;-- prior to painting, ensure plastic port plugs are tightly in place.

    Carry--over configuration

    P

    T

    C

    A1A2

    B2

    B1

    NOTE -- These torque are recommended. Assembly tightening torque depends on many factors, including lubrication, coating andsurface finish. The manufacturer shall be consulted.

    SDM102

    21DAT011E

    Fittings tightening torques -- Nm / lbft

    THREAD TYPE P and C ports A and B ports T port

    BSP (ISO 228/1) G 3/8 G 3/8 G 3/8With O--Ring seal 35 / 25.8 35 / 25.8 35 / 25.8With copper washer 40 / 29.5 40 / 29.5 40 / 29.5With steel and rubber washer 30 / 22.1 30 / 22.1 30 / 22.1

    SAE SAE 8 (3/4--16 UNF) SAE 6 (9/16--18 UNF) SAE 8 (3/4--16 UNF)With o--ring seal 50 / 36.9 30 / 22.1 50 / 36.9

    METRIC (ISO 262) M18 x 1.5 M18 x 1.5 M18 x 1.5With O--Ring seal 35 / 25.8 35 / 25.8 35 / 25.8With copper washer 40 / 29.5 40 / 29.5 40 / 29.5With steel and rubber washer 40 / 29.5 40 / 29.5 40 / 29.5

  • SDM102

    22 DAT011E

    MALFUNCTION CAUSE REMEDY

    External leakage control kit or oppositeside.

    Worn spool seal due to mechanicalactuation or high back pressure.

    Locate the leakage and replace the seal.Check back pressure level.

    Excessive internal leakage on A and Bports.

    Increase clearance between spools andbody due to high wear

    Replace the directional control valve andcheck the oil contamination level.

    Dropping load during transition whileraising High leakage on the load check valve.

    Remove the load check valve and cleanthe seat.

    Inability to build pressure on A and B

    Main pressure relief valve blocked open. Remove and clean or replace the mainrelief valve.Inability to build pressure on A and Bports. Port relief valve open.

    Remove and clean or replace the portrelief valve.

    Low pump pressure and flow. Check the pump and circuit.

    Installation and maintenance

    Pressure relief valve Spool

    Positioner kit

    Body

    Normally the spools are inter-changeable. Verify the smooth-ness during the assembly

    O--Ring seals 15.88x2.62code: 4GUA115926

    Chamfer

    Load check valvesSealingedge

    NOTE -- All articulated parts inside cap, lever box and mechanical joystick are lubricated with synthetic base grease grade NLGI2

    Holding O--Ringbushing

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    D1409808IDAT011E